Smoke consumer



' 1,639,7 6 Aug. 23, 1927. J. TJONES 3 SMOKE CONSUMER Filed Oct. 6, 1926 [xv wz/vroe: Jaw/v 7. Joxvzs Patented Aug. 23, 1927.

UNITED STATES PATENT OFFICE.

JOHN T. JONES, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO G. STEPHENS,

OF ST. LOUIS, MISSOURI.

SMOKE CONSUMER.

Application filed October 6, 1926. Serial No. 139,939.

Thevobject of my invention is to make a smoke consumer to be used in furnaces of the conventional type. A further object is to make a smoke consumer which will burn the carbon out of the smoke in the fire box. A still further object is to make a smoke consumer which will return any smoke formed in the combustion in the fire box to the fire box'at a point over the grate bars where the heat is more intense. A further'object is to make a smoke consumer in which the smoke that is returned to the fire box will be forced to the hottest part of the flame in the fire box and compelledto remain there until the combustion of the carbon in the smoke is complete. Among thefurther ob ]ects of my device is to devise a smoke con- I sumer that will not destroy the natural draft of the furnace and that can be easily and simply made of few and simple parts that lend themselves readily to multiple production and that may be easily positioned in a furnace and easily removed for repair, etc.

With these and other objects in View, my invention has relation to certain novel features of construction and arrangement of parts, as will be hereinafter more fully de scribed, pointed out in the claim and illustrated in the drawings in which,

Fig. 1 is a perspective view of an elemental furnace with a portion broken away in order to show the position and application of my smoke consumer.

F ig. 2 is an enlarged elevation of a portion of one of the pipes or tiles used in my smoke consumer, and

Fig. 3 is a sectional elevation on the line 8-3 of Fig. 2.

Fig. 4 is an enlarged fragmental elevation of a portion of a second pipe or tile used in my device and Fig. 5 is a sectional elevation on the line 5-5 of Fig. 4.

Numeral 6 designates the furnace generally, having the front 7, the side walls 8 and 9, and the top 10. Numeral 11 designates the ash door opening in the front wall 7 and numeral 12 designates the coal door opening positioned in the front wall 7 above the ash door opening 11. Numeral 13 designates the grate bars and numeral 14 the bridge wall. The structure thus far de scribed is conventional. My smoke consumer consists of the pipe or tile 15 and the pipe or tile 16 connected by the U fitting 17. The open end of the pipe or tile 15 is connected to the L fitting 18, which in turn is connected to the tile or pipe 19, which is in operative connection with the vacuum fan or pump 20. The opposite end of the vacuum fan orpump 20 has the pipe or tile 21 connected thereto in operative position. Numeral 22 designates the smoke stack and numeral 23 an L fitting connectedto the free end of the pipe 21, so that the open end of the l. 23 will be in a horizontal plane point-- ing downwardly on the interior of the smoke stack 22. The pipe or tile 16 is supported on top of the bridge wall 14 and the pipe or tile 15 is supported against the front wall 7. The pipes 15 and 16 are so positioned relative each other that they lie in the same horizontal plane. On the inner side of the pipe 16, that is, facing towards the pipe 15, are formed radial perforations 24. On the inner side of the pipe 15, facing the pipe 16, are formed perforations 25. The perforations are so located that they pointdownwardly at an angle of approximately from the horizontal. The radial perforations 24 are so positioned that they point horizontally. The perforations 24 and 25 are so positioned relative each other that a gas being emitted from the perforations 25 will pass downwardly and below the stream of gases passing from the perforations 24. The operation of the furnace described, together with the operation of my smoke consumer is the following: The products of combustion initially pass in the direction of the arrows marked A over the bridge wall 14, through the opening 26 into the smoke stack 22. nets of combustion arrive at the L 23 in the smoke stack 22, they are exhausted by the operation of the vacuum fan or pump 20 into the L 23 through the pipe 21, the vacuum fan or pump 20, the tile or pipe 19, the fitting 18, the pipe or tile 15, the U fitting 17 and the pipe or tile 16. The end of the pipe or tile 16 is closed by the cap 27. The products of combustion, including the smoke with its carbon content that reach the pipe or tile 15 are partially emitted through the perforations 25 and thrown downwardly onto the fire on the grate bars 13. The re mainder of the products of combustion, in-

When these prodcluding the carbon entrained therein, pass into the pipe or tile 16 and are forced through the radial perforations 24 horizontally, over the fire above the gases including the smoke that are passing out of the perforations 25. By this means the smoke is forced to remain until consumed practically in the fire or immediately above it, but at any rate, at the hottest part of the furnace. By virtue of being forced to remain at this hottest point, the smoke is burned. My device not only does not interfere With the natural draft from the smoke stack, but helps to increase that draft because the smoke laden air is drawn upwardly in the smoke stack 22 in the same direction as the natural draft. This is accomplished by the use of the L 23. Without it, the device Would tend to destroy the natural draft in the furnace andtend to the extent that the draft is destroyed to destroy the operation of the furnace.

What I claim and mean to secure by Letters Patent is,

In a device of the type described a furnace having a fire boX in which is positioned a grate and a bridge wall and having in addition a smoke stack, horizontal pipes positioned in said fire box in the horizontal plane on thetop of the bridge Wall, said pipes being in fluid communication with each other and in'fluid communication with the smoke stack, said pipes having perforations therein, the perforations in one pipe being so positioned therein as to emit a: gas passing therethrough downwardly on the grate bars and the perforations in the other pipe being so positioned as to emit gases passing therein horizontally and above the gases emitted from the perforations in the first of said pipes.

In testimony whereof I afiiX my signature.

JOHN T. JONES. 

